FS: AMD X4 965 combo

Finally wrapped up the old "For Sale" thread; should be easier to find stuff here:

All items include shipping in the continental US only. I will ship to the UK and Canada (extra charges apply). I prefer Paypal, Amazon Payments, or Bitcoin (amount to be determined by current exchange rate). Not looking for trades at the moment. If I'm selling it, it means "it" is in excellent condition and 100% functional. Anything out of the ordinary will be noted in the listing. I have feedback under whizbang at both Heatware and Beerology.

Could you give me an idea for the kind if increase I would get upgrading to the 570 from a GTX460 768MB (DC speaking, of course)? I just gotta know.

In Primegrid, it looks like just shy of a 30% difference between a 460 and a 470 (I have one 460 and three 470s still running, so my sample size is pretty small: YMMV and all that). I would guess a 570 is another 10 to 15%?